JPH05200075A - Examination table controller - Google Patents

Abstract

PURPOSE:To prevent a medical examination bed from operating unexpectedly, even if a control start instruction key is pressed, by normally invalidating a control start instruction and, on the other hand, validating the instruction when control release signals are continuously inputted for the predetermined time to allow the predetermined control signal to be outputted. CONSTITUTION:A control device 20 for a medical examination bed has the first and second input units 22 and 24 for inputting an instruction to operate the bed. Also, a measurement device 26 detects and outputs current values comprising the rotating angle of the bed around a vertical axis line, the height of a waist mat, the angle of a back mat and the height of a thigh rest. In addition, a memory circuit 28 having a plurality of memory sections saves the current values. Also, a main control circuit 30 controls the first to third drivers 32, 34 and 36, and a melody generator 38. On the other hand, each of the drivers 32, 34 and 36 actuates an electric motor 50 constituting the drive mechanism of the bed and an LED 44 for a solenoid valve 52 and a display. In this case, a control start instruction is outputted, only when a control release instruction is continuously inputted for the predetermined time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a displaceable examination table, and more particularly to a control apparatus suitable as an apparatus for controlling displacement of an obstetrics and gynecology examination table.

[0002]

2. Description of the Related Art Generally, a medical examination apparatus for obstetrics and gynecology comprises a medical examination table having a waist mat for receiving the patient's waist and a back mat for receiving the patient's back, and an examination table for adjusting the height of the patient to a doctor. An elevating mechanism that elevates and lowers, a rotating mechanism that angularly rotates the examination table around the vertical axis to adjust the orientation of the patient with respect to the doctor, and a back mat to the waist mat to keep the patient in a supine position at any angle. And a tilting mechanism for tilting at an arbitrary angle (for example, Japanese Patent Laid-Open No. 3-49462 and Japanese Utility Model Laid-Open No. 3-40995). When the patient sits on the examination table during the examination, the examination table is directed from the dressing area side to the examination area side. Next, the examination table is raised to a predetermined height to keep the patient at a predetermined height, and the back mat is tilted at a predetermined angle with respect to the waist mat to keep the patient in a supine position at an arbitrary angle. In this state, the medical examination is performed. When the examination is completed, the back mat is raised, the examination table is lowered, and the examination table is directed to the initial position. Optimal values for the height of the examination table and the angle of the back mat with respect to the waist mat at the time of examination differ depending on the doctor.

Various controls for driving the elevating mechanism, the rotating mechanism and the tilting mechanism are performed by a control device using a plurality of switches and the like. These switches are used as a means for inputting various control commands such as an operation command for displacing the examination table, a start instruction for the examination, and an end instruction for the examination to the control circuit of the control device. The control unit also controls the height of the examination table, the rotation angle of the examination table, the operation command for adjusting the angle of the waist mat, the height of the examination table, the rotation angle of the examination table, the angle of the waist mat, etc. A plurality of command keys are provided on the operation panel of the medical examination apparatus to generate various other control commands such as an operation command for setting a value. The control device sets the examination table so that the height of the examination table (height of the waist mat) and the angle of the back mat with respect to the waist mat become the predetermined initial values because the start command is input to the control circuit. Displacement, the operation command for displacement or adjustment is input to the control circuit, the examination table is displaced according to the operation command, and the operation command for setting is input to the control circuit. Operate the examination table according to the operation command,
The examination table is returned to the original state by the input of the end command to the control circuit.

However, in the conventional control device, since the drive command corresponding to the operated switch or key is output, the examination table operates even if the switch or key is operated by mistake. In particular, the command key provided on the operation panel may be operated unintentionally by a patient on the examination table in addition to the doctor and the nurse. In such a control device, the examination table is activated due to the command key being erroneously operated during the examination, which is dangerous.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the examination table from operating even if a command key is operated unless a predetermined key is continuously operated for a certain period of time.

[0006]

According to the present invention, a plurality of command keys for generating various control commands, a release key for generating a release command for enabling the command keys, a control command and the release command are received. , Which controls the command key to be valid and generate a control signal according to the control command input from the command key by always invalidating the command key and continuously receiving the cancel command for a predetermined time. And a circuit.

When the start command is input to the control circuit, the control circuit places the patient on the examination table in a predetermined examination state.
A control signal for displacing the examination table is output. However, since the command key is normally in the invalid state, even if the command key is operated, the control signal corresponding to the command key is not output, and the examination table does not operate. On the other hand, when the release key is continuously operated for the predetermined time, the release command is continuously input to the control circuit for the predetermined time, so that each command key is kept in the valid state. Therefore, thereafter, when any of the command keys is operated, the control circuit outputs a control signal corresponding to the command key, and the examination table operates in response to the control signal.

As described above, according to the present invention, unless the release key is continuously operated for a predetermined time, the command key is in an invalid state, and therefore, even if the command key is erroneously operated, It is safe because the examination table does not work.

It is preferable that the control circuit invalidates the command key again after a lapse of a predetermined time from when the release command is continuously received for a predetermined time. As a result, the command key is invalidated again after a predetermined time has elapsed since the release key was operated, which is safer. It is preferable that the control circuit continuously receives the release command for a predetermined time and, after a predetermined time has elapsed since the control command was received, invalidates the command key again. As a result, after a predetermined time has elapsed from the time when the command key was operated, the command key is placed in the invalid state again, which not only enhances the safety but also allows the control commands to be input one after another using a plurality of command keys. . The command key may include a key that generates various control commands for driving the examination table.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a medical examination apparatus 10 comprises a medical examination table 12 on which a patient is seated, an elevating mechanism 14 for elevating the medical examination table 12, and an elevating mechanism 14 for supporting the medical examination table 12 on the elevating mechanism 14. L attached to and receiving the examination table 12
And a character-shaped arm 16.

The examination table 12 is attached to the arm 16 through a rotation mechanism (not shown) that adjusts the orientation of the patient with respect to the doctor, and the rotation mechanism allows the examination table 12 to be angular about a vertically extending axis, that is, a vertical axis. To be rotated. The lifting mechanism 14 is arranged in a case 18 using a bellows. The examination table 12 has a waist mat 12a for receiving the patient's waist, a back mat 12b for receiving the patient's back, a pair of crotch supports 12c for receiving the patient's legs, and a pair of elbow supports 12d for receiving the patient's elbows. . The back mat 12b is
In order to keep the patient in a supine position at an arbitrary angle, the patient is tilted at an arbitrary angle with respect to the waist mat 12a by a tilting mechanism (not shown). Both crotch supports 12c are adjusted by an up-and-down moving mechanism (not shown) so as to keep the patient in a desired medical examination state. The lifting mechanism 14 and the tilting mechanism are mechanisms using a plurality of hydraulic jacks such as a hydraulic mechanism. On the other hand, the rotation mechanism and the vertical movement mechanism are mechanisms that use an electric motor as a drive source.

Referring to FIG. 2, the controller 20 for the examination table 12 includes first and second input units 22 and 24 for inputting a command to operate the examination table 12, and a examination around the vertical axis. Measuring device 26 for detecting and outputting the present value consisting of the rotation angle of the table, the height of the waist mat, the angle of the back mat, and the height of the crotch support, and the rotation angle of the examination table, the height of the waist mat, and the back mat , A main control circuit 30, and first, second and third drivers 32, 34 controlled by the main control circuit; 36 and a melody generator 38 controlled by the main control circuit 30. The first input unit 22 includes a plurality of foot switches, each of which functions as a first switch, and is movably arranged on the floor on which the examination device is installed. The second input unit 24 includes a plurality of command keys, each of which functions as a second switch, and is attached to the upper surface of the case 18 as shown in FIG.

Each of the foot switches of the first input unit 22 includes a start switch for instructing the start of the examination, an end switch for instructing the completion of the examination, a table raising switch for instructing the raising of the examination table, and a lowering of the examination table. Table lowering switch to command the back mat tilt switch to command the back mat to tilt, back mat return switch to command the back mat to rise, crotch support lift switch to command the crotch support to rise, and crotch support It is assigned to a switch that actually displaces the examination table, such as a crotch support lowering switch for instructing lowering. The start switch and the end switch output corresponding command signals when turned on. On the other hand, the other switches output the corresponding command signals while being kept on.

Each command key of the second input unit 24 is
As shown in FIG. 3, a large angle key 40a for instructing to increase the set value of the examination table rotation angle around the vertical axis, and a small set value of the examination table rotation angle around the vertical axis. Angle small key 40 to command
b, a release key 40c for releasing each command key from the invalid (key lock) state, a melody key 40d for setting a mode (melody mode) for generating a melody and its release, and updating information in the storage unit. An update mode key 40e for setting a possible mode (update mode), a plurality of memory keys 40f, 40g, 40h corresponding to the storage unit and outputting a storage unit designation signal for specifying the corresponding storage unit,
40i and 40j are included.

The second input unit 24 also includes an indicator 42 for displaying the set value of the rotation angle of the examination table around the vertical axis and a plurality of light emitting diodes 44c to 40c to 40j respectively corresponding to the keys 40c to 40j. 44j. The display 42 is a known one that displays a number by a plurality of segments, and can display a three-digit number in the illustrated example. Each of the light emitting diodes 44c to 44j is turned on while the corresponding key 40c to 40j is valid.

The measuring device 26 uses the ultrasonic wave and the laser beam for the present values of the rotation angle of the examination table about the vertical axis, the height of the examination table, the angle of the back mat with respect to the waist mat, and the height of the crotch support. Sensor 46 and a measurement circuit 48 that processes the output signal of the sensor, and the measured current value is input to control circuit 30.

The first driver 32 drives an electric motor 50 such as a rotating mechanism for rotating the examination table around a vertical axis and a vertical moving mechanism for vertically moving the crotch support according to a control signal supplied from the control circuit 30. Drive it. The second driver 34 drives a solenoid valve 52 such as a lifting mechanism that adjusts the height of the examination table and a tilting mechanism that adjusts the angle of the back mat with respect to the waist mat according to a control signal supplied from the control circuit 30. Let The third driver 36 responds to the control signal supplied from the control circuit 30 by the second input unit 2
The predetermined light emitting diodes 44c to 44j provided in
(Indicated by generic reference numeral 44 in FIG. 2).

During standby, the examination table 12 is oriented in a predetermined direction, the examination table 12 and the crotch support 12c are lowered, and the back mat 12b is raised. Further, any one of the memory keys 40f to 40j is enabled, and the light emitting diode corresponding to the memory key is turned on.

At the time of examination, after the patient sits on the examination table 12, the start switch of the first input unit 22 is stepped on by the doctor or nurse, and the start command is input to the control circuit 30. This causes the control circuit 30 to start operating.

The control circuit 30 firstly, the rotation angle of the examination table about the vertical axis, the height of the waist mat, which is stored in the storage section corresponding to the memory key that is valid,
Read back mat angle and crotch support height. Next, the control circuit 30 supplies a control signal for displacing the examination table 12 to the read rotation angle to the first driver 32. As a result, the examination table 12 is rotated about the vertical axis by a predetermined angle and is oriented in a predetermined direction. Next, the control circuit 30 supplies the control signal for raising the waist mat 12a to the read height and the control signal for inclining the back mat 12b to the read angle to the second driver 34, and A control signal for raising the receiver 12c to the read height is supplied to the first driver 32.

As a result, the waist mat 12a and the crotch support 12c are raised to a predetermined height, and the back mat 12b is tilted to a predetermined angle, so that the patient on the examination table 12 is placed in a predetermined supine position, It is put in a prescribed examination state.

When the end switch of the first input unit 22 is stepped on, the control circuit 30 controls the examination table 12 and the back mat 1.
A predetermined control signal for returning 2b and the crotch support 12c to the initial state is supplied to the first and second drivers 32, 34. As a result, the examination table 12 and the crotch support 12c are lowered, the back mat 12b is raised, and the examination table 12 is oriented in the original direction.

When another switch of the first input unit 22 is stepped on, the control circuit 30 outputs a control signal corresponding to the stepped switch while the switch is stepped on.
Alternatively, it is supplied to the second driver 32 or 34. As a result, the examination table 12 is raised, the examination table 12 is lowered, the back mat 12b is tilted, the back mat 12b is returned, the crotch support 12c is raised, and the crotch support 1 according to the stepped switch.
Either of the descending of 2c is performed.

The set value of the rotation angle of the examination table 12 around the vertical axis, that is, the set value of the rotation angle from the reference position is displayed on the display 42 of the second input unit 24. To generate a melody (in melody mode)
If set, the control circuit 30 sends a melody generation command to the melody generator 38 while the examination table 12 is displaced.
To produce a melody.

Next, the operation of the control circuit when the key of the second input unit 24 is depressed will be described with reference to FIGS.

Of the command keys of the second input unit 24, the command keys other than the cancel key 40c are always in the invalid or key lock mode even when pressed.
Therefore, even if any command key other than the release key 40c is mistakenly pressed, the examination table 12 does not operate. That is, the command keys of the second input unit 24 may be unintentionally erroneously pressed by the patient other than the doctor and the nurse. If each command key is valid, that is, if it is always in the key lock release mode, it is dangerous because the patient erroneously presses down one of the command keys during the medical examination and the examination table operates. . However, if each command key is always in the key lock mode, even if a patient or the like erroneously presses down any command key during a medical examination, the examination table does not operate, which is safe.

As shown in FIG. 4, when the release key 40c is pressed, the control circuit 30 determines whether or not the release key 40c has been pressed for a certain period of time, for example, 2 seconds (step 100). ). If the result of determination in step 100 is that the release key 40c has not been pressed down for a certain period of time, the control circuit 30 returns to the standby state. However, if the release key 40c is continuously pressed for a certain period of time, the control circuit 30 sets each key of the second input unit 24 to the key lock release state, and the light emitting diode corresponding to the release key 40c. 44c is turned on (step 101). Therefore, unless the release key is continuously operated for a predetermined time, even if the command key is erroneously operated, the examination table does not operate and it is safe. Next, the control circuit 30 determines whether or not a fixed time, for example, 3 seconds has elapsed since the release key 40c was pressed (step 102). As a result of this judgment, if 3 seconds have passed,
The control circuit 30 sets each key of the second input unit 24 to the invalid state, that is, the key lock state, puts the light emitting diode 44c corresponding to the release key 40c in the off state (step 103), and then returns to the standby state. Therefore, the second
Each key of the input unit 24 is put in a key-locked state again to enhance safety. If the result of determination in step 102 is that 3 seconds have not elapsed, the control circuit 30
Determines whether or not another key has been pressed (step 104). If the result of this determination is that no other key has been pressed, the control circuit 30 returns to step 102. Therefore, if another key is not pressed within a certain period of time after the release key 40c is pressed, the control circuit 30 causes the control circuit 30 to proceed to step 10.
After performing step 3, the second input unit 2 is returned to the standby state.
Each key of 4 is put in the state of the key lock again, and the safety is enhanced. If the result of determination in step 104 is that another key has been pressed, the control circuit 30 performs processing corresponding to the pressed key (step 105), and then a certain time, for example 3 after the other key has been pressed. It is determined whether seconds have passed (step 106). The control circuit 30 returns to step 104 if the fixed time has not elapsed as a result of the determination in step 106, but if the fixed time has elapsed, executes the step 103 and then returns to the standby state. Therefore, it is possible to input control commands one after another with a plurality of command keys within a fixed time after pressing the other keys. If another key is not pressed within a certain time after the other key is pressed, each command key is put in the key-locked state again, and the safety is enhanced.

As shown in FIG. 5, when the large angle key 40a is depressed, the control circuit 30 determines whether or not the key lock is released (step 107). If the result of this determination is that the key lock has not been released, the control circuit 30
Returns to the standby state. However, if the result of determination in step 107 is that the key lock has been released, the control circuit 30 counts the set value of the rotation angle of the examination table 12 around the vertical axis in the up state (step 10).
8) Return to the standby state. This corrects the set value of the rotation angle of the examination table 12 around the vertical axis.

As shown in FIG. 6, when the small angle key 40b is depressed, the control circuit 30 determines whether or not the key lock is released (step 109). If the result of this determination is that the key lock has not been released, the control circuit 30 returns to the standby state. However, if the result of determination in step 109 is that the key lock has been released, the control circuit 30 counts the set value of the rotation angle of the examination table 12 around the vertical axis in the down state (step 10
8) Return to the standby state. This corrects the set value of the rotation angle of the examination table 12 around the vertical axis.

As shown in FIG. 7, when the melody key 40d is pressed down, the control circuit 30 determines whether or not the key lock is released (step 111). As a result of this determination, the control circuit 30 returns to the standby state as it is if the key lock is not released, but if the key lock is released, whether or not the melody mode is set to generate a melody. It is determined (step 112). If the result of determination in step 112 is that the melody mode is not set, the control circuit 30
The melody mode is set (step 113), the light emitting diode 44d corresponding to the melody key 40d is turned on (step 114), and then the standby state is returned to. If the result of determination in step 112 is that the melody mode has been set, the control circuit 30 sets so as not to generate a melody, that is, the non-melody mode (step 115), and turns on the light emitting diode 44d corresponding to the melody key 40d. After putting it off (Step 11)
6) Return to the standby state.

As shown in FIG. 8, the update mode key 40e
When is depressed, the control circuit 30 determines whether or not the key lock is released (step 117). If the result of this determination is that the key lock has not been released, the control circuit 30 returns to the standby state as is, but if the key lock has been released, the control circuit 30 is set to the updatable mode, that is, the update mode. It is determined whether or not (step 118). If the result of determination in step 118 is that the update mode has not been set, the control circuit 30 sets the update mode (step 119) and the update mode key 4
After the light emitting diode 44e corresponding to 0e is turned on (step 120), it returns to the standby state. Step 1
As a result of the determination in 18, if the update mode is set, the control circuit 30 returns to the standby state. As will be described later, the light emitting diode 44e is turned off and the update mode is released (set to the non-update mode) during the processing when any one of the memory keys 40f to 40j is pressed.

As shown in FIG. 9, memory keys 40f-4f
When any one of 0j, for example, the memory key 40f is pressed, the control circuit 30 determines whether or not the key lock is released (step 121). As a result of this judgment,
If the key lock is not released, the control circuit 30 returns to the standby state, but if the key lock is released, the control circuit 30 determines whether or not the update mode is set (step 1).
22). If the result of determination in step 122 is that the update mode has not been set, the control circuit 30 outputs information that should be read when the start switch of the first input unit 22 is stepped on to the storage section (corresponding to that memory key 44f). It is set to be the information in the memory 1) (step 12
3), the light emitting diode 44 corresponding to the memory key 40f
After f is turned on (step 124), it returns to the standby state. If the result of determination in step 122 is that update mode has been set, the control circuit 30 causes the memory key 4
The information in the storage unit (memory 1) corresponding to 4f is updated to the current value supplied from the measuring device 26 (step 1
25), the update mode is canceled (set to the non-update mode) and the light emitting diode 44 corresponding to the update mode key
e is turned off (step 126), and the memory key 4
After the light emitting diode 44f corresponding to 4f is turned on (step 127), it returns to the standby state. As a result, the storage unit (memory-1) corresponding to the memory key 44f
The information therein is updated to the current values of the rotation angle of the examination table, the height of the waist mat, the angle of the back mat, and the height of the crotch pad, which are supplied from the measuring device 26 to the control circuit 30. Other memory keys 44g, 44h, 44h, 44i and 44j
If any of the above is reduced, step 1 shown in FIG.
The control circuit 30 executes the above steps 121 to 127, except that the storage unit and the light emitting diode corresponding to the memory key are processed at 23 to 127. Therefore, the doctor uses the optional foot switch of the first input unit 22 to put the patient in the optimal supine state and the optimal medical examination state, presses the release key 40c, presses the update key 40e, and then the memory key. 40f ~
By depressing any one of the 40j, it is possible to set an optimal posture for oneself.

The update mode key 40e is used as a means for outputting a command to update the information in the storage unit, instead of placing the update mode in which the information in the storage unit is allowed to be updated, and the update command is output. As a result, the information in the storage section specified by the storage section designation signal may be updated to the current value output from the measuring device. Further, the rotation angle of the examination table around the vertical axis is always the same when the examination device and its installation location are determined, even if the doctors using the examination device are different, so the rotation angle of the examination table is always the same. Therefore, the predetermined rotation angle may be stored or set in a specific storage unit or other means. Further, the height of the crotch support does not have to be a different value for each doctor. A command key corresponding to each foot switch of the first input unit 22 may be provided in the second input unit or in the second input unit.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a medical examination device including a control device of the present invention.

FIG. 2 is a block diagram of an electric circuit showing an embodiment of a control device of the present invention.

FIG. 3 is a diagram showing an example of a second input unit.

FIG. 4 is a diagram for explaining an operation when a release key is pressed.

FIG. 5 is a diagram for explaining an operation when a large angle key is pressed.

FIG. 6 is a diagram for explaining the operation when the small angle key is pressed.

FIG. 7 is a diagram for explaining an operation when a melody key is pressed down.

FIG. 8 is a diagram for explaining an operation when the update mode key is pressed.

FIG. 9 is a diagram for explaining the operation when the memory key is pressed down.

[Explanation of symbols]

 10 Screening Device 12 Screening Table 14 Lifting Mechanism 20 Control Device 40a-40j Command Key 42 Display 44a-44j Light Emitting Diode

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazuo Matsubara 3-18-15 Hongo, Bunkyo-ku, Tokyo Atom Co., Ltd.

Claims (4)

[Claims] 1. A plurality of command keys for generating various control commands, a release key for generating a release command for enabling the command key, a control command and the release command, and the command key is normally operated. A checkup table including a control circuit that invalidates and continuously receives the release command for a predetermined time to validate the command key and generate a control signal according to the control command input from the command key. Control device. 2. The control device according to claim 1, wherein the control circuit invalidates the command key again after a lapse of a predetermined time from when the release command is continuously received for a predetermined time. 3. The control circuit according to claim 1, wherein the control circuit continuously receives the release command for a predetermined time and, after a predetermined time has elapsed from the time when the control command was received, reactivates the command key. Control device. 4. The control device according to claim 1, wherein the command key includes a key that generates various control commands for driving the examination table.